Deflated-tire signal



H. A. WILSON.

DEFLATED TIRE SIGNAL. LICATION FILED MA'Y13 19 APP 1 425 7 3 3. PatentedAug. 15, 1922 i I v @174,

wont invention appertains.

I heiress rams HUGH A..w1Lson,-;or M NKA'ro, mams0 ,g

Specification of Application filed May 13,

To all 'w/"zom it may concern; I

Be it known that I, Hoar-i A. WILSON, citizen of the United States,residing at lsiiankat in the county of Blue Earth and State ofMinnesota, have invented anew and useful Defiated-Tire Signalyof which.the followingis a specification;

It is the object of this invention to provide a simple but effectivemeans whereby a signal wiil be given, when a pneumatic tire loses itsair on the road or elsewhere, to the end that the driver may not'operatethe car in ignorance, on a flat tire, to-the injury of the tire. I y I IIt is within the province of the disclosure to improve generally and Itoenhance the utility of devices of that type to which the ,IVith theabove and other obiectsin view. which will appear as the descriptlonproceeds, the invention resides in the combination and arrangement ofparts and in the precise embodiment of the invention shown can be madewithout departing from the spirit of the invention. s v y In theaccompanying drawings Figure 1 shows in side elevation, a portion of awheel body carrying a device constructed in accordance with theinvention: Figure 2 is a section taken approximately on the line I 2-2of Figure 1; Figure 3 is a section taken on the line 33 of Figure 2; andFigure 4 is a detail enlarged from Figure2; In the drawings, there isshown a wheel body comprising a felly 1 and a 1'11112, the rim carryinga casing 3 within which is located an inflatable tube 4:. o

In carrying out the invention, there is provided atubular guide 5 havinga; reduced stem 6 threaded into the telly 1 and the rim 2. The guide 5has an outer bore 7 an intermediate bore 8 and an inner bore 9, The

outer bore 7 of the guide 'is of greater dia-meter than the intermediatebore 8, thereby forming a shoulder 10.

An abutment disk ll-rests on'the shoulder 10 andhas an opening 12. Thenumeral 14 located in the bore 8 a'nd is separated from pnr ArEn-TmnsIen L. '1

Letters Patent. i

921. Serial No. 469,290.

the abutment dish 11 by spacers Securing elements 17, such as-screws,pass, through the diaphragm 14, through 'thespacerstlG,

throughthe abutment disk 11 and into the; shoulder 10','th erebylholding the diaphragm and the abutment diskin place, i

v A plunger 18is mounted for right line reciprocation in, the inner bore9 of the guide 5 and is suppliedat its inner endwith a button 19,made ofrubber. or-likematerial and adapted to bear against the lnner tube at,the object in ,view being.torprevent"-tlie' injury of the inner tube bycontact-with the plunger. The outer end of the plunger may be slightlyresilientand is provided with ,y I

teeth 20, the outerfend of the plunger pass-w ing through the opening 12in the abutment", disk 11 and through the 0136111I1g1I5 1I1 theidiaphragm 1d," the teeth 20 engaging the: diaphragm 14' at one endloftheopenin'g'15 therein. An abutment 21 is mounted on the plunger '18 andis locatedin the intermedi ate bore 8 of the guide 5. 'A compression"spring 22 surrounds a portion of the plun' ger 18, one, end ofthe spring:22 engaging I the abutment dislbll, and the other end of the springengaging the abutment 21 on the plunger 18. f A cap 23, madeo'f aluminumor like material, is threaded on th te lot-the guide 5.," H

In practical operation, when tubet is inflated, the tube expands andpushes Hw plunger 18 outwardly, overcoming the jaci tion of the spring22., 'I/Vhen, due to puncture or otherwise, "the tube 4; loses ltS- airand flattens the spring 22assertsjits'elf and thrusts the plunger 18inwardly, there traverse the diaphragmill, at oneend of the opening 15,the diaphragmbeing vibrated by causing the teeth 20Hon the'plung 't. :1

device hereinbefore described '21- though simple. in' construotiOn.affords a;

simple .means whereby an": audiblejsignal may begiven at any time to thedriver of a vehicle, admonishing the driver that a tire on the vehiclehas failed. ,g v

' In a defiatedtire signal, a guide an nient disk in the guidepfaresonant diaphragin in the guide gmeans-forisecuring;

the diaphragm and thedisk to thegui'de; a;

threughthe abutment disk and the diaperagm, "the plunger having teethengaging the diaglragm; an abutment 0n the plungel' and a compressionspring interposed between the abutment. and the abutment disk.

In testimony that I claim the-feregoingz my own, I have hereto afiixedmy signature in the presence of two wltnesees.

( HUGH ,A; WILSON.

"Witnesses 1 B. GROGAN, f IRENE DIEGNAN.

